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Article

A Highly Efficient Single-Phase Three-Level Neutral Point Clamped (NPC) Converter Based on Predictive Control with Reduced Number of Commutations

School of Electrical and Electronics Engineering, Chung-ang University, Seoul 06974, Korea
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Energies 2018, 11(12), 3524; https://doi.org/10.3390/en11123524
Received: 16 November 2018 / Revised: 14 December 2018 / Accepted: 14 December 2018 / Published: 18 December 2018
This paper proposes a highly efficient single-phase three-level neutral point clamped (NPC) converter operated by a model predictive control (MPC) method with reduced commutations of switches. The proposed method only allows switching states with none or a single commutation at the next step as candidates for future switching states for the MPC method. Because the proposed method preselects switching states with reduced commutations when selecting an optimal state at a future step, the proposed method can reduce the number of switchings and the corresponding switching losses. Although the proposed method slightly increases the peak-to-peak variations of the two dc capacitor voltages, the developed method does not deteriorate the input current quality and input power factor despite the reduced number of switching numbers and losses. Thus, the proposed method can reduce the number of switching losses and lead to high efficiency, in comparison with the conventional MPC method. View Full-Text
Keywords: model predictive control; single-phase three-level NPC converter; commutation model predictive control; single-phase three-level NPC converter; commutation
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MDPI and ACS Style

Jun, E.-S.; Kwak, S. A Highly Efficient Single-Phase Three-Level Neutral Point Clamped (NPC) Converter Based on Predictive Control with Reduced Number of Commutations. Energies 2018, 11, 3524. https://doi.org/10.3390/en11123524

AMA Style

Jun E-S, Kwak S. A Highly Efficient Single-Phase Three-Level Neutral Point Clamped (NPC) Converter Based on Predictive Control with Reduced Number of Commutations. Energies. 2018; 11(12):3524. https://doi.org/10.3390/en11123524

Chicago/Turabian Style

Jun, Eun-Su, and Sangshin Kwak. 2018. "A Highly Efficient Single-Phase Three-Level Neutral Point Clamped (NPC) Converter Based on Predictive Control with Reduced Number of Commutations" Energies 11, no. 12: 3524. https://doi.org/10.3390/en11123524

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